Speed-indicator.



IVI. NYSTROIV.

SPEED INDICATOR.

APPLICATION FILED Nov. 16. 191s.

Patented Apr. 24, 1917.

irnn'rrnnxsrnom, or cnicneo,

contamina contr v ILLINOIS, ASSIGNOR T THE BRUNSWICK-BALU- OF CHICAGO,ILLINOIS, A CORPORATION 0F DELAWARE.

` SPEED-HIDICATOR. i

.To all whom it may concern:

Be it known -that I, MARTIN NYs'iRoM, a citizen of the United States,residing at Chr cago, in thecounty of Cook and State of Illinois, haveinvented certain lnew and useful Improvements in Speed-Indicators, ofpin e l A scale 13 is provided upon the face of.

- which the following is a Specification.

rlhis invention relates to a Speed indicator for talking machine recordtables.

^ rlalking machines are commonly provided with governors andregulatingvmeans to vary the speed of rotation' of the record table tocorrespond to the speed at which Athe record groove was originally cut.This varies in records;` of different manufacture and not infrequentlyin those of the same manufacture and it is essential ifthe best resultsare to be obtained that. the speed of rotation of the table beaccurately determined. The indicators provided on talking l machines arefrequently inaccurate and, therefore, can not be relied upon. f"

- It is theobject of my invention to provide 'jan independent speedindicator of simple and inexpensive character` .whereby the actual speedofrotation ofthe record ltablefmay invention will'be' apparentes itisbetter understood by reference l to' thefollowing specification whenread in connection with the accompanying drawing, illustrating thepreferred embodiment thereof, in whiche- Figure 1 a `iview'inperspective of an .indicator according to my invention;

vFig. 2 is `a vertical section through the indicator .illustrating theoperating Vmecha-A fnism therefor, and .4,0

- Fig. 3` is 'Fig.2.'

Referring'- to thedrawing, 1 indicates a .-"adapted tosupportthestandard 2 which is.. preferably constructed in itwo parts, asindicated in Fig. 3, securedtol gether by ascrew 3.- The standard 2.may

l the spindle be secured to the basel in any suitable manner. asforexample by thethreaded collar 4.'

An axial o ening 5l is provided. to-receive lt of the tallng machinewhich projects above the record tabled?.`

' Mounted on suitable pivot pins 8 1n the the indi lbe quickly vandaccuratelyde' record table of afta a section on .the 'line` l ofspecification of Letters ratent. Pawnee@ gpm 24g, 119117., Applicationiiled November 16, 1916. Serial I&To.l131,6v22. l

standard are a `pair of-arms 9 and 10, eachv provided with a ,weightr 11at its extremity. The arms 9'and 10 project through suitable openings 12in the standard 2 so projects through an opening 16 in the face thereofto coperate with the scale '13. -An

extension 17 of the varm. 9 is provided with a rounded end 18cooperating with a socket 19 on the indicator 14 thus forming anoperating connection between 'Caton The mode rof operation of myinvention will be apparent from the following brief description thereof.The indicator is arthe arm. 9 and ranged .upon the record table with1the' l spindle 6 .disposed in the axial opening 5.

Power is then applied in the usual manner .to the spindle 6 .to rotatethe record table 7 whereupon the lweights 11 are moved automatically :bycentrifugal force, the' amount of movementdependin upon the rate ofyspeed of rotation of the record table 7.. The

connection between.l the `arm 9 and the indicator 14 causes lthe. lattert6 move over the f scale 13 to accurately indicate the speed of rotationofthe record table. l

. From. the foregoing it will be readily apparent that I lhave perfecteda simple device, embodying a minimum of inexpensive parts, which. may beg machine to determine exactly the speedof rotation. If

' the indicatedspeed is not that desired for the particul'ar'record themechanism `of the talkingmachine may' be' adjustedto rotate the recordtable 7 at thedesi'redspeedg" J V-It will be apparent that variouschanges' may be Iliade in the -form,'construct1on and l'arrangement.ofthe parts without departing from the spirit and scope of the inventionorsacriiicing any of its. materialv advantages', the form hereinbeforedescribed .be-`

ing merelya preferred embodiment'theroof. claim: t v r' A speed.indicator for talking inachme krecord tables comprising a Y.baise havingan axial op'eningto.v receive' the `spindle ofathat they may swingreadily about the pivot..

quickly applied to the` talking' machine, a hollow standard suphaving anextensi ported on said base having a slot in one face oator. and a scalecontiguous to said slot an .indioator pivotally mounted Within saids'tand-A MARTIN NYSTROM ard with its end projecting through saidv` lWitnesses;

slot, and a pair of Weighted. arms pivotally A M. D. HNDRIoKsoN, mountedon said standard, one of said arms N. W. CUMMIlms.4

on engaging said indi-`

